Attachment 341690 Details for Bug 186151 – Patch

[patch] Patch

bug-186151-20180531133355.patch (text/plain), 46.74 KB, created by Aditya Keerthi on 2018-05-31 13:33:56 PDT

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Creator: Aditya Keerthi

Created: 2018-05-31 13:33:56 PDT

Size: 46.74 KB

patch

obsolete

>Subversion Revision: 232309
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 76a81d086fa55e5f06f9ff7b194a580b9adedd23..2b0efeb2e5da197f20a041f8ad11b2cf2492c9b5 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,54 @@
>+2018-05-31  Aditya Keerthi  <akeerthi@apple.com>
>+
>+        [Datalist] Allow TextFieldInputType to show and hide suggestions
>+        https://bugs.webkit.org/show_bug.cgi?id=186151
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        TextFieldInputTypes with a list attribute should be able to display suggestions as the user
>+        interacts with the input field. In order to display suggestions for an input field with a list
>+        attribute, we need provide certain information - including the items to suggest and the location
>+        to present the suggestions. TextFieldInputType can now provide this information by conforming to
>+        the DataListSuggestionsClient interface.
>+
>+        In this initial patch, the suggestions can be shown in two ways. The first is by clicking on the
>+        input field. The other is by typing text in the field. In a later patch, we will add a third way
>+        to display suggestions, using a button. These ways to activate the suggestions are enumerated in
>+        DataListSuggestionInformation.
>+
>+        We hide the suggestions if there are no more to show, or if the input has blurred.
>+
>+        Tests to be added once work has been done in the UIProcess.
>+
>+        * WebCore.xcodeproj/project.pbxproj:
>+        * html/DataListSuggestionInformation.h: Added. Contains the information necessary to display suggestions.
>+        * html/TextFieldInputType.cpp:
>+        (WebCore::TextFieldInputType::~TextFieldInputType):
>+        (WebCore::TextFieldInputType::handleClickEvent): Show suggestions when the element is clicked.
>+        (WebCore::TextFieldInputType::handleKeydownEvent): Allow users to interact with the suggestions using the keyboard.
>+        (WebCore::TextFieldInputType::elementDidBlur): Hide the suggestions.
>+        (WebCore::TextFieldInputType::shouldRespectListAttribute):
>+        (WebCore::TextFieldInputType::didSetValueByUserEdit): Update the suggestions if the text has changed.
>+        (WebCore::TextFieldInputType::elementRectRelativeToRootView const): Provide the location where the suggestions should be shown.
>+        (WebCore::TextFieldInputType::suggestions const): Provide the list of suggestions.
>+        (WebCore::TextFieldInputType::didSelectDataListOption): Update the text once an suggestion has been selected.
>+        (WebCore::TextFieldInputType::didCloseSuggestions):
>+        (WebCore::TextFieldInputType::displaySuggestions):
>+        (WebCore::TextFieldInputType::closeSuggestions):
>+        * html/TextFieldInputType.h:
>+        * loader/EmptyClients.cpp:
>+        (WebCore::EmptyChromeClient::createDataListSuggestionPicker):
>+        * loader/EmptyClients.h:
>+        * page/Chrome.cpp:
>+        (WebCore::Chrome::createDataListSuggestionPicker):
>+        * page/Chrome.h:
>+        * page/ChromeClient.h:
>+        * platform/DataListSuggestionPicker.h: Added.
>+        (WebCore::DataListSuggestionPicker::close):
>+        (WebCore::DataListSuggestionPicker::handleKeydownWithIdentifier):
>+        (WebCore::DataListSuggestionPicker::displayWithActivationType):
>+        * platform/DataListSuggestionsClient.h: Added.
>+
> 2018-05-30  Youenn Fablet  <youenn@apple.com>
> 
>         Rename CrossOriginResourcePolicy same to same-origin
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 6224cd600084f9241c8017772bba12e3f158e5bd..a194a314b21b7d1d4ef51b85b99ec6174988f471 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,35 @@
>+2018-05-31  Aditya Keerthi  <akeerthi@apple.com>
>+
>+        [Datalist] Allow TextFieldInputType to show and hide suggestions
>+        https://bugs.webkit.org/show_bug.cgi?id=186151
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Added WebDataListSuggestionPicker to send messages to the UIProcess in order to update the suggestions view.
>+        This object is also responsible for forwarding messages from WebKit into the DataListSuggestionsClient, which
>+        is the TextFieldInputType in this case. The client needs to know when the suggestions are hidden or if an
>+        suggestion has been selected.
>+
>+        * WebKit.xcodeproj/project.pbxproj:
>+        * WebProcess/WebCoreSupport/WebChromeClient.cpp:
>+        (WebKit::WebChromeClient::createDataListSuggestionPicker): Responsible for creating WebDataListSuggestionPicker to send/receive messages.
>+        * WebProcess/WebCoreSupport/WebChromeClient.h:
>+        * WebProcess/WebCoreSupport/WebDataListSuggestionPicker.cpp: Added. Responsible for sending messages to UIProcess and updating the DataListSuggestionsClient.
>+        (WebKit::WebDataListSuggestionPicker::WebDataListSuggestionPicker):
>+        (WebKit::WebDataListSuggestionPicker::~WebDataListSuggestionPicker):
>+        (WebKit::WebDataListSuggestionPicker::handleKeydownWithIdentifier):
>+        (WebKit::WebDataListSuggestionPicker::didSelectOption):
>+        (WebKit::WebDataListSuggestionPicker::didCloseSuggestions):
>+        (WebKit::WebDataListSuggestionPicker::close):
>+        (WebKit::WebDataListSuggestionPicker::displayWithActivationType):
>+        * WebProcess/WebCoreSupport/WebDataListSuggestionPicker.h: Added.
>+        * WebProcess/WebPage/WebPage.cpp:
>+        (WebKit::WebPage::setActiveDataListSuggestionPicker):
>+        (WebKit::WebPage::didSelectDataListOption): Called by UIProcess when option selected.
>+        (WebKit::WebPage::didCloseSuggestions): Called by UIProcess if the suggestions view is closed.
>+        * WebProcess/WebPage/WebPage.h:
>+        * WebProcess/WebPage/WebPage.messages.in:
>+
> 2018-05-30  Youenn Fablet  <youenn@apple.com>
> 
>         Rename CrossOriginResourcePolicy same to same-origin
>diff --git a/Source/WebKitLegacy/mac/ChangeLog b/Source/WebKitLegacy/mac/ChangeLog
>index e7785501b26e57c0a8f43376d6d9c9ab1316e8c1..fae3ddc5006f73f3a5f5a2c66453b44313100cf4 100644
>--- a/Source/WebKitLegacy/mac/ChangeLog
>+++ b/Source/WebKitLegacy/mac/ChangeLog
>@@ -1,3 +1,14 @@
>+2018-05-31  Aditya Keerthi  <akeerthi@apple.com>
>+
>+        [Datalist] Allow TextFieldInputType to show and hide suggestions
>+        https://bugs.webkit.org/show_bug.cgi?id=186151
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        * WebCoreSupport/WebChromeClient.h:
>+        * WebCoreSupport/WebChromeClient.mm:
>+        (WebChromeClient::createDataListSuggestionPicker):
>+
> 2018-05-27  Dan Bernstein  <mitz@apple.com>
> 
>         Reverted the changes made for https://webkit.org/b/186016
>diff --git a/Source/WebCore/WebCore.xcodeproj/project.pbxproj b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>index 1673aa9a530ca3d2e91685fa1c4051a2ee5910db..cc3ce5b49bbc5239fcd690a82e8bfc6eebc00d8d 100644
>--- a/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>+++ b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>@@ -4770,6 +4770,9 @@
> 		E4E9B1191810916F003ACCDF /* SimpleLineLayoutResolver.h in Headers */ = {isa = PBXBuildFile; fileRef = E4E9B1181810916F003ACCDF /* SimpleLineLayoutResolver.h */; };
> 		E4E9B11D1814569C003ACCDF /* SimpleLineLayoutFunctions.h in Headers */ = {isa = PBXBuildFile; fileRef = E4E9B11C1814569C003ACCDF /* SimpleLineLayoutFunctions.h */; };
> 		E4F9EEF3156DA00700D23E7E /* StyleSheetContents.h in Headers */ = {isa = PBXBuildFile; fileRef = E4F9EEF1156D84C400D23E7E /* StyleSheetContents.h */; settings = {ATTRIBUTES = (Private, ); }; };
>+		E517670320B88C1400D41167 /* DataListSuggestionInformation.h in Headers */ = {isa = PBXBuildFile; fileRef = E517670220B88C1400D41167 /* DataListSuggestionInformation.h */; settings = {ATTRIBUTES = (Private, ); }; };
>+		E52CF54D20A268AC00DADA27 /* DataListSuggestionsClient.h in Headers */ = {isa = PBXBuildFile; fileRef = E52CF54C20A268AC00DADA27 /* DataListSuggestionsClient.h */; settings = {ATTRIBUTES = (Private, ); }; };
>+		E52CF54F20A35A2800DADA27 /* DataListSuggestionPicker.h in Headers */ = {isa = PBXBuildFile; fileRef = E52CF54E20A35A2800DADA27 /* DataListSuggestionPicker.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		E5BA7D63151437CA00FE1E3F /* LengthFunctions.h in Headers */ = {isa = PBXBuildFile; fileRef = E5BA7D62151437CA00FE1E3F /* LengthFunctions.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		EBF5121C1696496C0056BD25 /* JSTypeConversions.cpp in Sources */ = {isa = PBXBuildFile; fileRef = EBF5121A1696496C0056BD25 /* JSTypeConversions.cpp */; };
> 		EBF5121D1696496C0056BD25 /* JSTypeConversions.h in Headers */ = {isa = PBXBuildFile; fileRef = EBF5121B1696496C0056BD25 /* JSTypeConversions.h */; };
>@@ -14452,8 +14455,11 @@
> 		E4E9B11C1814569C003ACCDF /* SimpleLineLayoutFunctions.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SimpleLineLayoutFunctions.h; sourceTree = "<group>"; };
> 		E4F9EEF0156D84C400D23E7E /* StyleSheetContents.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = StyleSheetContents.cpp; sourceTree = "<group>"; };
> 		E4F9EEF1156D84C400D23E7E /* StyleSheetContents.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = StyleSheetContents.h; sourceTree = "<group>"; };
>+		E517670220B88C1400D41167 /* DataListSuggestionInformation.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = DataListSuggestionInformation.h; sourceTree = "<group>"; };
> 		E51A81DE17298D7700BFCA61 /* JSPerformance.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = JSPerformance.cpp; sourceTree = "<group>"; };
> 		E526AF3E1727F8F200E41781 /* Performance.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = Performance.cpp; sourceTree = "<group>"; };
>+		E52CF54C20A268AC00DADA27 /* DataListSuggestionsClient.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = DataListSuggestionsClient.h; sourceTree = "<group>"; };
>+		E52CF54E20A35A2800DADA27 /* DataListSuggestionPicker.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = DataListSuggestionPicker.h; sourceTree = "<group>"; };
> 		E55F4979151B888000BB67DB /* LengthFunctions.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = LengthFunctions.cpp; sourceTree = "<group>"; };
> 		E5BA7D62151437CA00FE1E3F /* LengthFunctions.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = LengthFunctions.h; sourceTree = "<group>"; };
> 		EB081CD81696084400553730 /* TypeConversions.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = TypeConversions.h; sourceTree = "<group>"; };
>@@ -20337,6 +20343,7 @@
> 				93C441FF0F813AE100C1A634 /* CollectionType.h */,
> 				BC29935C17A1DD5800BCE880 /* ColorInputType.cpp */,
> 				F55B3D801251F12D003EF269 /* ColorInputType.h */,
>+				E517670220B88C1400D41167 /* DataListSuggestionInformation.h */,
> 				F55B3D811251F12D003EF269 /* DateInputType.cpp */,
> 				F55B3D821251F12D003EF269 /* DateInputType.h */,
> 				F55B3D831251F12D003EF269 /* DateTimeInputType.cpp */,
>@@ -24350,6 +24357,8 @@
> 				46C696C91E7205E400597937 /* CPUMonitor.h */,
> 				E11AF15011B9A1A300805103 /* Cursor.cpp */,
> 				F587868402DE3B8601EA4122 /* Cursor.h */,
>+				E52CF54E20A35A2800DADA27 /* DataListSuggestionPicker.h */,
>+				E52CF54C20A268AC00DADA27 /* DataListSuggestionsClient.h */,
> 				A5732B08136A161D005C8D7C /* DateComponents.cpp */,
> 				A5732B09136A161D005C8D7C /* DateComponents.h */,
> 				37C738F11EDBDE87003F2B0B /* DateTimeChooser.h */,
>@@ -27571,6 +27580,9 @@
> 				BE23480D18A9871400E4B6E8 /* DataCue.h in Headers */,
> 				C5227DF11C3C6DF100F5ED54 /* DataDetection.h in Headers */,
> 				7C7941E51C56C29300A4C58E /* DataDetectorsCoreSoftLink.h in Headers */,
>+				E517670320B88C1400D41167 /* DataListSuggestionInformation.h in Headers */,
>+				E52CF54F20A35A2800DADA27 /* DataListSuggestionPicker.h in Headers */,
>+				E52CF54D20A268AC00DADA27 /* DataListSuggestionsClient.h in Headers */,
> 				BC22746F0E83664500E7F975 /* DataRef.h in Headers */,
> 				BC64641C11D7F416006455B0 /* DatasetDOMStringMap.h in Headers */,
> 				85031B3E0A44EFC700F992E0 /* DataTransfer.h in Headers */,
>diff --git a/Source/WebCore/html/DataListSuggestionInformation.h b/Source/WebCore/html/DataListSuggestionInformation.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..462307ee19d5437133ed87b0d73180765439583f
>--- /dev/null
>+++ b/Source/WebCore/html/DataListSuggestionInformation.h
>@@ -0,0 +1,44 @@
>+/*
>+ * Copyright (C) 2018 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#if ENABLE(DATALIST_ELEMENT)
>+namespace WebCore {
>+
>+enum DataListSuggestionActivationType {
>+    ControlClicked,
>+    IndicatorClicked,
>+    TextChanged,
>+};
>+
>+struct DataListSuggestionInformation {
>+    DataListSuggestionActivationType activationType;
>+    Vector<String> suggestions;
>+    IntRect elementRect;
>+};
>+
>+}
>+#endif
>diff --git a/Source/WebCore/html/TextFieldInputType.cpp b/Source/WebCore/html/TextFieldInputType.cpp
>index d9c492ed13831f8c691451187d6bbe07bdd6a231..b8523b5086846a69eee5fbdb3702b247d2dc31e6 100644
>--- a/Source/WebCore/html/TextFieldInputType.cpp
>+++ b/Source/WebCore/html/TextFieldInputType.cpp
>@@ -58,6 +58,11 @@
> #include "TextNodeTraversal.h"
> #include "WheelEvent.h"
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+#include "HTMLDataListElement.h"
>+#include "HTMLOptionElement.h"
>+#endif
>+
> namespace WebCore {
> 
> using namespace HTMLNames;
>@@ -71,6 +76,9 @@ TextFieldInputType::~TextFieldInputType()
> {
>     if (m_innerSpinButton)
>         m_innerSpinButton->removeSpinButtonOwner();
>+#if ENABLE(DATALIST_ELEMENT)
>+    closeSuggestions();
>+#endif
> }
> 
> bool TextFieldInputType::isKeyboardFocusable(KeyboardEvent*) const
>@@ -156,10 +164,23 @@ void TextFieldInputType::setValue(const String& sanitizedValue, bool valueChange
>         input->setTextAsOfLastFormControlChangeEvent(sanitizedValue);
> }
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+void TextFieldInputType::handleClickEvent(__unused MouseEvent& event)
>+{
>+    if (element().focused() && element().list())
>+        displaySuggestions(DataListSuggestionActivationType::ControlClicked);
>+}
>+#endif
>+
> void TextFieldInputType::handleKeydownEvent(KeyboardEvent& event)
> {
>     if (!element().focused())
>         return;
>+#if ENABLE(DATALIST_ELEMENT)
>+    const String& key = event.keyIdentifier();
>+    if (m_suggestionPicker && (key == "Enter" || key == "Up" || key == "Down"))
>+        m_suggestionPicker->handleKeydownWithIdentifier(key);
>+#endif
>     RefPtr<Frame> frame = element().document().frame();
>     if (!frame || !frame->editor().doTextFieldCommandFromEvent(&element(), &event))
>         return;
>@@ -213,6 +234,10 @@ void TextFieldInputType::elementDidBlur()
>     bool isLeftToRightDirection = downcast<RenderTextControlSingleLine>(*renderer).style().isLeftToRightDirection();
>     ScrollOffset scrollOffset(isLeftToRightDirection ? 0 : innerLayer->scrollWidth(), 0);
>     innerLayer->scrollToOffset(scrollOffset);
>+
>+#if ENABLE(DATALIST_ELEMENT)
>+    closeSuggestions();
>+#endif
> }
> 
> void TextFieldInputType::handleFocusEvent(Node* oldFocusedNode, FocusDirection)
>@@ -516,7 +541,11 @@ void TextFieldInputType::handleBeforeTextInsertedEvent(BeforeTextInsertedEvent&
> 
> bool TextFieldInputType::shouldRespectListAttribute()
> {
>+#if ENABLE(DATALIST_ELEMENT)
>+    return true;
>+#else
>     return InputType::themeSupportsDataListUI(this);
>+#endif
> }
> 
> void TextFieldInputType::updatePlaceholderText()
>@@ -583,6 +612,10 @@ void TextFieldInputType::didSetValueByUserEdit()
>         return;
>     if (RefPtr<Frame> frame = element().document().frame())
>         frame->editor().textDidChangeInTextField(&element());
>+#if ENABLE(DATALIST_ELEMENT)
>+    if (element().list())
>+        displaySuggestions(DataListSuggestionActivationType::TextChanged);
>+#endif
> }
> 
> void TextFieldInputType::spinButtonStepDown()
>@@ -717,4 +750,67 @@ void TextFieldInputType::updateAutoFillButton()
>         m_autoFillButton->setInlineStyleProperty(CSSPropertyDisplay, CSSValueNone, true);        
> }
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+
>+IntRect TextFieldInputType::elementRectRelativeToRootView() const
>+{
>+    if (!element().renderer())
>+        return IntRect();
>+    return element().document().view()->contentsToRootView(element().renderer()->absoluteBoundingBoxRect());
>+}
>+
>+Vector<String> TextFieldInputType::suggestions() const
>+{
>+    Vector<String> suggestions;
>+
>+    if (auto dataList = element().dataList()) {
>+        Ref<HTMLCollection> options = dataList->options();
>+        for (unsigned i = 0; RefPtr<HTMLOptionElement> option = downcast<HTMLOptionElement>(options->item(i)); ++i) {
>+            if (!element().isValidValue(option->value()))
>+                continue;
>+
>+            String value = sanitizeValue(option->value());
>+            if (!suggestions.contains(value) && (element().value().isEmpty() || value.containsIgnoringASCIICase(element().value())))
>+                suggestions.append(value);
>+        }
>+    }
>+
>+    return suggestions;
>+}
>+
>+void TextFieldInputType::didSelectDataListOption(const String& selectedOption)
>+{
>+    element().setValue(selectedOption, DispatchInputAndChangeEvent);
>+}
>+
>+void TextFieldInputType::didCloseSuggestions()
>+{
>+    m_suggestionPicker = nullptr;
>+}
>+
>+void TextFieldInputType::displaySuggestions(DataListSuggestionActivationType type)
>+{
>+    if (element().isDisabledFormControl() || !element().renderer())
>+        return;
>+
>+    if (!UserGestureIndicator::processingUserGesture())
>+        return;
>+
>+    if (!m_suggestionPicker && suggestions().size() > 0)
>+        m_suggestionPicker = chrome()->createDataListSuggestionPicker(*this);
>+
>+    if (!m_suggestionPicker)
>+        return;
>+
>+    m_suggestionPicker->displayWithActivationType(type);
>+}
>+
>+void TextFieldInputType::closeSuggestions()
>+{
>+    if (m_suggestionPicker)
>+        m_suggestionPicker->close();
>+}
>+
>+#endif
>+
> } // namespace WebCore
>diff --git a/Source/WebCore/html/TextFieldInputType.h b/Source/WebCore/html/TextFieldInputType.h
>index 07b573d7e489cdec9a67a09b57e45b74af5812fa..a1b6edce3ff8bb78402acfe5d59706de4e732ac0 100644
>--- a/Source/WebCore/html/TextFieldInputType.h
>+++ b/Source/WebCore/html/TextFieldInputType.h
>@@ -31,6 +31,8 @@
> #pragma once
> 
> #include "AutoFillButtonElement.h"
>+#include "DataListSuggestionPicker.h"
>+#include "DataListSuggestionsClient.h"
> #include "InputType.h"
> #include "SpinButtonElement.h"
> 
>@@ -41,12 +43,19 @@ class TextControlInnerTextElement;
> 
> // The class represents types of which UI contain text fields.
> // It supports not only the types for BaseTextInputType but also type=number.
>-class TextFieldInputType : public InputType, protected SpinButtonElement::SpinButtonOwner, protected AutoFillButtonElement::AutoFillButtonOwner {
>+class TextFieldInputType : public InputType, protected SpinButtonElement::SpinButtonOwner, protected AutoFillButtonElement::AutoFillButtonOwner
>+#if ENABLE(DATALIST_ELEMENT)
>+    , private DataListSuggestionsClient
>+#endif
>+{
> protected:
>     explicit TextFieldInputType(HTMLInputElement&);
>     virtual ~TextFieldInputType();
>     void handleKeydownEvent(KeyboardEvent&) override;
>     void handleKeydownEventForSpinButton(KeyboardEvent&);
>+#if ENABLE(DATALIST_ELEMENT)
>+    void handleClickEvent(MouseEvent&) override;
>+#endif
> 
>     HTMLElement* containerElement() const final;
>     HTMLElement* innerBlockElement() const final;
>@@ -110,6 +119,19 @@ private:
>     void createContainer();
>     void createAutoFillButton(AutoFillButtonType);
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+    void displaySuggestions(DataListSuggestionActivationType);
>+    void closeSuggestions();
>+
>+    // DataListSuggestionsClient
>+    IntRect elementRectRelativeToRootView() const final;
>+    Vector<String> suggestions() const final;
>+    void didSelectDataListOption(const String&) final;
>+    void didCloseSuggestions() final;
>+
>+    std::unique_ptr<DataListSuggestionPicker> m_suggestionPicker;
>+#endif
>+
>     RefPtr<HTMLElement> m_container;
>     RefPtr<HTMLElement> m_innerBlock;
>     RefPtr<TextControlInnerTextElement> m_innerText;
>diff --git a/Source/WebCore/loader/EmptyClients.cpp b/Source/WebCore/loader/EmptyClients.cpp
>index c6e5eeefa6294bf4dd759103ef51710ed5849a8b..6053b878b2f0454003df14701ea8cba4d039dac7 100644
>--- a/Source/WebCore/loader/EmptyClients.cpp
>+++ b/Source/WebCore/loader/EmptyClients.cpp
>@@ -32,6 +32,7 @@
> #include "BackForwardClient.h"
> #include "ColorChooser.h"
> #include "ContextMenuClient.h"
>+#include "DataListSuggestionPicker.h"
> #include "DatabaseProvider.h"
> #include "DiagnosticLoggingClient.h"
> #include "DocumentFragment.h"
>@@ -423,6 +424,15 @@ std::unique_ptr<ColorChooser> EmptyChromeClient::createColorChooser(ColorChooser
> 
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+
>+std::unique_ptr<DataListSuggestionPicker> EmptyChromeClient::createDataListSuggestionPicker(DataListSuggestionsClient&)
>+{
>+    return nullptr;
>+}
>+
>+#endif
>+
> void EmptyChromeClient::runOpenPanel(Frame&, FileChooser&)
> {
> }
>diff --git a/Source/WebCore/loader/EmptyClients.h b/Source/WebCore/loader/EmptyClients.h
>index e285f639e0d87bd586dc3ffade5fce9c87efc0fc..9d052b0b9523fbc846693f22dc5fc78aa380765c 100644
>--- a/Source/WebCore/loader/EmptyClients.h
>+++ b/Source/WebCore/loader/EmptyClients.h
>@@ -132,6 +132,10 @@ class EmptyChromeClient : public ChromeClient {
>     std::unique_ptr<ColorChooser> createColorChooser(ColorChooserClient&, const Color&) final;
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+    std::unique_ptr<DataListSuggestionPicker> createDataListSuggestionPicker(DataListSuggestionsClient&) final;
>+#endif
>+
>     void runOpenPanel(Frame&, FileChooser&) final;
>     void loadIconForFiles(const Vector<String>&, FileIconLoader&) final { }
> 
>diff --git a/Source/WebCore/page/Chrome.cpp b/Source/WebCore/page/Chrome.cpp
>index 770a96b1003b233902430d9fd20f645bd6e30369..ff69edef1c0086b63bc55d234b1cf262b559edff 100644
>--- a/Source/WebCore/page/Chrome.cpp
>+++ b/Source/WebCore/page/Chrome.cpp
>@@ -56,6 +56,10 @@
> #include "ColorChooser.h"
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+#include "DataListSuggestionPicker.h"
>+#endif
>+
> namespace WebCore {
> 
> using namespace HTMLNames;
>@@ -422,6 +426,16 @@ std::unique_ptr<ColorChooser> Chrome::createColorChooser(ColorChooserClient& cli
> 
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+
>+std::unique_ptr<DataListSuggestionPicker> Chrome::createDataListSuggestionPicker(DataListSuggestionsClient& client)
>+{
>+    notifyPopupOpeningObservers();
>+    return m_client.createDataListSuggestionPicker(client);
>+}
>+
>+#endif
>+
> void Chrome::runOpenPanel(Frame& frame, FileChooser& fileChooser)
> {
>     notifyPopupOpeningObservers();
>diff --git a/Source/WebCore/page/Chrome.h b/Source/WebCore/page/Chrome.h
>index 2174cbe126df5f34c02329726faf625d6a211135..ccbce93556ea94b5c110c5dc357c35d98831a9ff 100644
>--- a/Source/WebCore/page/Chrome.h
>+++ b/Source/WebCore/page/Chrome.h
>@@ -37,6 +37,8 @@ namespace WebCore {
> class ChromeClient;
> class ColorChooser;
> class ColorChooserClient;
>+class DataListSuggestionPicker;
>+class DataListSuggestionsClient;
> class DateTimeChooser;
> class DateTimeChooserClient;
> class FileChooser;
>@@ -152,6 +154,10 @@ public:
>     std::unique_ptr<ColorChooser> createColorChooser(ColorChooserClient&, const Color& initialColor);
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+    std::unique_ptr<DataListSuggestionPicker> createDataListSuggestionPicker(DataListSuggestionsClient&);
>+#endif
>+
>     void runOpenPanel(Frame&, FileChooser&);
>     void loadIconForFiles(const Vector<String>&, FileIconLoader&);
> 
>diff --git a/Source/WebCore/page/ChromeClient.h b/Source/WebCore/page/ChromeClient.h
>index e2422370e7edef4459edef0091b1ef6dfb3efbd2..bea0d8f4cb8ad34b1e996ebf318cffb0fb968be7 100644
>--- a/Source/WebCore/page/ChromeClient.h
>+++ b/Source/WebCore/page/ChromeClient.h
>@@ -68,6 +68,8 @@ namespace WebCore {
> class AccessibilityObject;
> class ColorChooser;
> class ColorChooserClient;
>+class DataListSuggestionPicker;
>+class DataListSuggestionsClient;
> class DateTimeChooser;
> class DateTimeChooserClient;
> class Element;
>@@ -275,6 +277,10 @@ public:
>     virtual std::unique_ptr<ColorChooser> createColorChooser(ColorChooserClient&, const Color&) = 0;
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+    virtual std::unique_ptr<DataListSuggestionPicker> createDataListSuggestionPicker(DataListSuggestionsClient&) = 0;
>+#endif
>+
>     virtual void runOpenPanel(Frame&, FileChooser&) = 0;
>     // Asynchronous request to load an icon for specified filenames.
>     virtual void loadIconForFiles(const Vector<String>&, FileIconLoader&) = 0;
>diff --git a/Source/WebCore/platform/DataListSuggestionPicker.h b/Source/WebCore/platform/DataListSuggestionPicker.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..433154c803bbc4a318d12beeac96053644a527fb
>--- /dev/null
>+++ b/Source/WebCore/platform/DataListSuggestionPicker.h
>@@ -0,0 +1,48 @@
>+/*
>+ * Copyright (C) 2018 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#if ENABLE(DATALIST_ELEMENT)
>+
>+#import "DataListSuggestionInformation.h"
>+#import "IntRect.h"
>+
>+#import <wtf/text/WTFString.h>
>+
>+namespace WebCore {
>+
>+class DataListSuggestionPicker {
>+public:
>+    virtual ~DataListSuggestionPicker() = default;
>+
>+    virtual void close() { }
>+    virtual void handleKeydownWithIdentifier(const WTF::String&) { }
>+    virtual void displayWithActivationType(DataListSuggestionActivationType) { }
>+};
>+
>+} // namespace WebCore
>+
>+#endif
>diff --git a/Source/WebCore/platform/DataListSuggestionsClient.h b/Source/WebCore/platform/DataListSuggestionsClient.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..200894a9381959c6d1eeef6709797eae4dabb856
>--- /dev/null
>+++ b/Source/WebCore/platform/DataListSuggestionsClient.h
>@@ -0,0 +1,48 @@
>+/*
>+ * Copyright (C) 2018 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#if ENABLE(DATALIST_ELEMENT)
>+
>+#include "IntRect.h"
>+#include <wtf/Vector.h>
>+
>+namespace WebCore {
>+
>+class DataListSuggestionsClient {
>+public:
>+    virtual ~DataListSuggestionsClient() = default;
>+
>+    virtual IntRect elementRectRelativeToRootView() const = 0;
>+    virtual Vector<String> suggestions() const = 0;
>+
>+    virtual void didSelectDataListOption(const String&) = 0;
>+    virtual void didCloseSuggestions() = 0;
>+};
>+
>+}
>+
>+#endif // ENABLE(DATALIST_ELEMENT)
>diff --git a/Source/WebKit/WebKit.xcodeproj/project.pbxproj b/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>index 326ed6d115e3b01e8d042a6ac66753c762492ecb..bda77731b5f4c8f084471b618785e96ce44bbbaa 100644
>--- a/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>+++ b/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>@@ -2156,6 +2156,8 @@
> 		E49D40D91AD3FB210066B7B9 /* NetworkCacheBlobStorage.cpp in Sources */ = {isa = PBXBuildFile; fileRef = E49D40D81AD3FB210066B7B9 /* NetworkCacheBlobStorage.cpp */; };
> 		E4E864921B16750100C82F40 /* VersionChecks.mm in Sources */ = {isa = PBXBuildFile; fileRef = E4E8648F1B1673FB00C82F40 /* VersionChecks.mm */; };
> 		E4E864931B16750700C82F40 /* VersionChecks.h in Headers */ = {isa = PBXBuildFile; fileRef = E4E8648E1B1673FB00C82F40 /* VersionChecks.h */; };
>+		E52CF55220A35C3A00DADA27 /* WebDataListSuggestionPicker.h in Headers */ = {isa = PBXBuildFile; fileRef = E52CF55020A35C3A00DADA27 /* WebDataListSuggestionPicker.h */; };
>+		E52CF55320A35C3A00DADA27 /* WebDataListSuggestionPicker.cpp in Sources */ = {isa = PBXBuildFile; fileRef = E52CF55120A35C3A00DADA27 /* WebDataListSuggestionPicker.cpp */; };
> 		ECA680D81E690E2500731D20 /* WebProcessCocoa.h in Headers */ = {isa = PBXBuildFile; fileRef = ECA680D71E690DF800731D20 /* WebProcessCocoa.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		ED82A7F2128C6FAF004477B3 /* WKBundlePageOverlay.h in Headers */ = {isa = PBXBuildFile; fileRef = 1A22F0FF1289FCD90085E74F /* WKBundlePageOverlay.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		EDCA71B7128DDA8C00201B26 /* WKBundlePageOverlay.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 1A22F1001289FCD90085E74F /* WKBundlePageOverlay.cpp */; };
>@@ -4700,6 +4702,8 @@
> 		E49D40D81AD3FB210066B7B9 /* NetworkCacheBlobStorage.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = NetworkCacheBlobStorage.cpp; sourceTree = "<group>"; };
> 		E4E8648E1B1673FB00C82F40 /* VersionChecks.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = VersionChecks.h; sourceTree = "<group>"; };
> 		E4E8648F1B1673FB00C82F40 /* VersionChecks.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = VersionChecks.mm; sourceTree = "<group>"; };
>+		E52CF55020A35C3A00DADA27 /* WebDataListSuggestionPicker.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = WebDataListSuggestionPicker.h; sourceTree = "<group>"; };
>+		E52CF55120A35C3A00DADA27 /* WebDataListSuggestionPicker.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = WebDataListSuggestionPicker.cpp; sourceTree = "<group>"; };
> 		ECA680D31E6904B500731D20 /* ExtraPrivateSymbolsForTAPI.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ExtraPrivateSymbolsForTAPI.h; sourceTree = "<group>"; };
> 		ECA680D71E690DF800731D20 /* WebProcessCocoa.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = WebProcessCocoa.h; sourceTree = "<group>"; };
> 		ECBFC1DB1E6A4D66000300C7 /* ExtraPublicSymbolsForTAPI.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ExtraPublicSymbolsForTAPI.h; sourceTree = "<group>"; };
>@@ -7161,6 +7165,8 @@
> 				4A410F4919AF7B80002EBAB5 /* WebUserMediaClient.h */,
> 				83EE57591DB7D60600C74C50 /* WebValidationMessageClient.cpp */,
> 				83EE575A1DB7D60600C74C50 /* WebValidationMessageClient.h */,
>+				E52CF55020A35C3A00DADA27 /* WebDataListSuggestionPicker.h */,
>+				E52CF55120A35C3A00DADA27 /* WebDataListSuggestionPicker.cpp */,
> 			);
> 			path = WebCoreSupport;
> 			sourceTree = "<group>";
>@@ -8842,6 +8848,7 @@
> 				7CE4D2071A46776100C7F152 /* APILegacyContextHistoryClient.h in Headers */,
> 				1A2464F31891E45100234C5B /* APILoaderClient.h in Headers */,
> 				7CD3A4831A5D02FA009623B8 /* APINavigation.h in Headers */,
>+				E52CF55220A35C3A00DADA27 /* WebDataListSuggestionPicker.h in Headers */,
> 				2DF9EEEC1A7836EE00B6CFBE /* APINavigationAction.h in Headers */,
> 				2DD9EB2D1A6F012500BB1267 /* APINavigationClient.h in Headers */,
> 				BCF69FA21176D01400471A52 /* APINavigationData.h in Headers */,
>@@ -11063,6 +11070,7 @@
> 				1CA8B945127C882A00576C2B /* WebInspectorProxyMessageReceiver.cpp in Sources */,
> 				1C891D6519B124FF00BA79DD /* WebInspectorUI.cpp in Sources */,
> 				1CA8B954127C891500576C2B /* WebInspectorUIMac.mm in Sources */,
>+				E52CF55320A35C3A00DADA27 /* WebDataListSuggestionPicker.cpp in Sources */,
> 				1CBBE4A019B66C53006B7D81 /* WebInspectorUIMessageReceiver.cpp in Sources */,
> 				A55BA82C1BA38E64007CD33D /* WebInspectorUtilities.cpp in Sources */,
> 				2DA944A11884E4F000ED86DB /* WebIOSEventFactory.mm in Sources */,
>diff --git a/Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.cpp b/Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.cpp
>index 64ef63e11c72e58452fcad7eacdb45801b33335b..0c955f6771beccbe568f0242479f16301f5d1f4c 100644
>--- a/Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.cpp
>+++ b/Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.cpp
>@@ -40,6 +40,7 @@
> #include "UserData.h"
> #include "WebColorChooser.h"
> #include "WebCoreArgumentCoders.h"
>+#include "WebDataListSuggestionPicker.h"
> #include "WebFrame.h"
> #include "WebFrameLoaderClient.h"
> #include "WebFullScreenManager.h"
>@@ -57,6 +58,7 @@
> #include <WebCore/ApplicationCacheStorage.h>
> #include <WebCore/AXObjectCache.h>
> #include <WebCore/ColorChooser.h>
>+#include <WebCore/DataListSuggestionPicker.h>
> #include <WebCore/DatabaseTracker.h>
> #include <WebCore/DocumentLoader.h>
> #include <WebCore/FileChooser.h>
>@@ -789,6 +791,15 @@ std::unique_ptr<ColorChooser> WebChromeClient::createColorChooser(ColorChooserCl
> 
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+
>+std::unique_ptr<DataListSuggestionPicker> WebChromeClient::createDataListSuggestionPicker(DataListSuggestionsClient& client)
>+{
>+    return std::make_unique<WebDataListSuggestionPicker>(&m_page, &client);
>+}
>+
>+#endif
>+
> void WebChromeClient::runOpenPanel(Frame& frame, FileChooser& fileChooser)
> {
>     if (m_page.activeOpenPanelResultListener())
>diff --git a/Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.h b/Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.h
>index 5846ae3c4bc205da93079a47e9f2e73c803d5e6b..811a822c94534366a75031115e9a0faa93f427d8 100644
>--- a/Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.h
>+++ b/Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.h
>@@ -148,6 +148,10 @@ private:
>     std::unique_ptr<WebCore::ColorChooser> createColorChooser(WebCore::ColorChooserClient&, const WebCore::Color&) final;
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+    std::unique_ptr<WebCore::DataListSuggestionPicker> createDataListSuggestionPicker(WebCore::DataListSuggestionsClient&) final;
>+#endif
>+
> #if ENABLE(IOS_TOUCH_EVENTS)
>     void didPreventDefaultForEvent() final;
> #endif
>diff --git a/Source/WebKit/WebProcess/WebCoreSupport/WebDataListSuggestionPicker.cpp b/Source/WebKit/WebProcess/WebCoreSupport/WebDataListSuggestionPicker.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..778b5bb4bd7497e32cee06a016100efcb96e5259
>--- /dev/null
>+++ b/Source/WebKit/WebProcess/WebCoreSupport/WebDataListSuggestionPicker.cpp
>@@ -0,0 +1,73 @@
>+/*
>+ * Copyright (C) 2018 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#include "config.h"
>+#include "WebDataListSuggestionPicker.h"
>+
>+#if ENABLE(DATALIST_ELEMENT)
>+
>+#include "WebPage.h"
>+#include "WebPageProxyMessages.h"
>+#include "WebProcess.h"
>+#include <WebCore/DataListSuggestionsClient.h>
>+
>+using namespace WebCore;
>+
>+namespace WebKit {
>+
>+WebDataListSuggestionPicker::WebDataListSuggestionPicker(WebPage* page, DataListSuggestionsClient* client)
>+    : m_dataListSuggestionsClient(client)
>+    , m_page(page) { }
>+
>+WebDataListSuggestionPicker::~WebDataListSuggestionPicker() { }
>+
>+void WebDataListSuggestionPicker::handleKeydownWithIdentifier(const WTF::String& key)
>+{
>+
>+}
>+
>+void WebDataListSuggestionPicker::didSelectOption(const WTF::String& selectedOption)
>+{
>+
>+}
>+
>+void WebDataListSuggestionPicker::didCloseSuggestions()
>+{
>+
>+}
>+
>+void WebDataListSuggestionPicker::close()
>+{
>+
>+}
>+
>+void WebDataListSuggestionPicker::displayWithActivationType(DataListSuggestionActivationType type)
>+{
>+
>+}
>+
>+} // namespace WebKit
>+
>+#endif
>diff --git a/Source/WebKit/WebProcess/WebCoreSupport/WebDataListSuggestionPicker.h b/Source/WebKit/WebProcess/WebCoreSupport/WebDataListSuggestionPicker.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..3f31399532ef67b49d28a7ef998dbe59e774f6eb
>--- /dev/null
>+++ b/Source/WebKit/WebProcess/WebCoreSupport/WebDataListSuggestionPicker.h
>@@ -0,0 +1,58 @@
>+/*
>+ * Copyright (C) 2018 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#if ENABLE(DATALIST_ELEMENT)
>+
>+#include <WebCore/DataListSuggestionPicker.h>
>+#include <wtf/text/WTFString.h>
>+
>+namespace WebCore {
>+class DataListSuggestionsClient;
>+}
>+
>+namespace WebKit {
>+
>+class WebPage;
>+
>+class WebDataListSuggestionPicker : public WebCore::DataListSuggestionPicker {
>+public:
>+    WebDataListSuggestionPicker(WebPage*, WebCore::DataListSuggestionsClient*);
>+    virtual ~WebDataListSuggestionPicker();
>+
>+    void handleKeydownWithIdentifier(const WTF::String&) override;
>+    void didSelectOption(const WTF::String&);
>+    void didCloseSuggestions();
>+    void close() override;
>+    void displayWithActivationType(WebCore::DataListSuggestionActivationType) override;
>+private:
>+    __unused WebCore::DataListSuggestionsClient* m_dataListSuggestionsClient;
>+    __unused WebPage* m_page;
>+};
>+
>+} // namespace WebKit
>+
>+#endif
>diff --git a/Source/WebKit/WebProcess/WebPage/WebPage.cpp b/Source/WebKit/WebProcess/WebPage/WebPage.cpp
>index 8daa1180942381b1420865b3c51b8a2590418217..2de609c44d7f11b8c432e03be9cfa5ee9f70681e 100644
>--- a/Source/WebKit/WebProcess/WebPage/WebPage.cpp
>+++ b/Source/WebKit/WebProcess/WebPage/WebPage.cpp
>@@ -76,6 +76,7 @@
> #include "WebContextMenu.h"
> #include "WebContextMenuClient.h"
> #include "WebCoreArgumentCoders.h"
>+#include "WebDataListSuggestionPicker.h"
> #include "WebDatabaseProvider.h"
> #include "WebDiagnosticLoggingClient.h"
> #include "WebDocumentLoader.h"
>@@ -3548,6 +3549,26 @@ void WebPage::didChooseColor(const WebCore::Color& color)
> 
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+
>+void WebPage::setActiveDataListSuggestionPicker(WebDataListSuggestionPicker* dataListSuggestionPicker)
>+{
>+    m_activeDataListSuggestionPicker = dataListSuggestionPicker;
>+}
>+
>+void WebPage::didSelectDataListOption(const String& selectedOption)
>+{
>+    m_activeDataListSuggestionPicker->didSelectOption(selectedOption);
>+}
>+
>+void WebPage::didCloseSuggestions()
>+{
>+    m_activeDataListSuggestionPicker->didCloseSuggestions();
>+    m_activeDataListSuggestionPicker = nullptr;
>+}
>+
>+#endif
>+
> void WebPage::setActiveOpenPanelResultListener(Ref<WebOpenPanelResultListener>&& openPanelResultListener)
> {
>     m_activeOpenPanelResultListener = WTFMove(openPanelResultListener);
>diff --git a/Source/WebKit/WebProcess/WebPage/WebPage.h b/Source/WebKit/WebProcess/WebPage/WebPage.h
>index 1699a91157baa78c8862db63076c080cdff6e533..331575e243f7e5edec096192accb770a8b5c776b 100644
>--- a/Source/WebKit/WebProcess/WebPage/WebPage.h
>+++ b/Source/WebKit/WebProcess/WebPage/WebPage.h
>@@ -199,6 +199,7 @@ class VisibleContentRectUpdateInfo;
> class WebColorChooser;
> class WebContextMenu;
> class WebContextMenuItemData;
>+class WebDataListSuggestionPicker;
> class WebDocumentLoader;
> class WebEvent;
> class WebFrame;
>@@ -361,6 +362,12 @@ public:
>     void didEndColorPicker();
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+    void setActiveDataListSuggestionPicker(WebDataListSuggestionPicker*);
>+    void didSelectDataListOption(const String&);
>+    void didCloseSuggestions();
>+#endif
>+
>     WebOpenPanelResultListener* activeOpenPanelResultListener() const { return m_activeOpenPanelResultListener.get(); }
>     void setActiveOpenPanelResultListener(Ref<WebOpenPanelResultListener>&&);
> 
>@@ -1551,6 +1558,10 @@ private:
>     WebColorChooser* m_activeColorChooser { nullptr };
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+    WebDataListSuggestionPicker* m_activeDataListSuggestionPicker { nullptr };
>+#endif
>+
>     RefPtr<WebOpenPanelResultListener> m_activeOpenPanelResultListener;
>     RefPtr<NotificationPermissionRequestManager> m_notificationPermissionRequestManager;
> 
>diff --git a/Source/WebKit/WebProcess/WebPage/WebPage.messages.in b/Source/WebKit/WebProcess/WebPage/WebPage.messages.in
>index 7e1503065a26ad67e3daa3a368241c006c21d706..fcebcf2f17948d5fddefa49db85726c3a7598e8a 100644
>--- a/Source/WebKit/WebProcess/WebPage/WebPage.messages.in
>+++ b/Source/WebKit/WebProcess/WebPage/WebPage.messages.in
>@@ -127,6 +127,11 @@ messages -> WebPage LegacyReceiver {
>     DidChooseColor(WebCore::Color color)
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+    DidSelectDataListOption(String selectedOption);
>+    DidCloseSuggestions();
>+#endif
>+
> #if ENABLE(CONTEXT_MENUS)
>     ContextMenuHidden()
>     ContextMenuForKeyEvent()
>diff --git a/Source/WebKitLegacy/mac/WebCoreSupport/WebChromeClient.h b/Source/WebKitLegacy/mac/WebCoreSupport/WebChromeClient.h
>index 424c91a3bd2168771c33ca0b1c0fdfa044b2b264..4355a866d641037ba67f1aedccafc07e8ab2d9db 100644
>--- a/Source/WebKitLegacy/mac/WebCoreSupport/WebChromeClient.h
>+++ b/Source/WebKitLegacy/mac/WebCoreSupport/WebChromeClient.h
>@@ -138,6 +138,10 @@ private:
>     std::unique_ptr<WebCore::ColorChooser> createColorChooser(WebCore::ColorChooserClient&, const WebCore::Color&) final;
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+    std::unique_ptr<WebCore::DataListSuggestionPicker> createDataListSuggestionPicker(WebCore::DataListSuggestionsClient&) final;
>+#endif
>+
> #if ENABLE(POINTER_LOCK)
>     bool requestPointerLock() final;
>     void requestPointerUnlock() final;
>diff --git a/Source/WebKitLegacy/mac/WebCoreSupport/WebChromeClient.mm b/Source/WebKitLegacy/mac/WebCoreSupport/WebChromeClient.mm
>index 81fe21d7a6b741eaebe439f9b5731ec2b6590f38..9d6e8d878c6b33c2c67e797fc6876379d6a7454e 100644
>--- a/Source/WebKitLegacy/mac/WebCoreSupport/WebChromeClient.mm
>+++ b/Source/WebKitLegacy/mac/WebCoreSupport/WebChromeClient.mm
>@@ -58,6 +58,7 @@
> #import <WebCore/ContextMenu.h>
> #import <WebCore/ContextMenuController.h>
> #import <WebCore/Cursor.h>
>+#import <WebCore/DataListSuggestionPicker.h>
> #import <WebCore/DeprecatedGlobalSettings.h>
> #import <WebCore/Element.h>
> #import <WebCore/FileChooser.h>
>@@ -723,6 +724,14 @@ std::unique_ptr<ColorChooser> WebChromeClient::createColorChooser(ColorChooserCl
> 
> #endif
> 
>+#if ENABLE(DATALIST_ELEMENT)
>+std::unique_ptr<DataListSuggestionPicker> WebChromeClient::createDataListSuggestionPicker(DataListSuggestionsClient& client)
>+{
>+    ASSERT_NOT_REACHED();
>+    return nullptr;
>+}
>+#endif
>+
> #if ENABLE(POINTER_LOCK)
> bool WebChromeClient::requestPointerLock()
> {

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Attachments on bug 186151: 341690 | 341977 | 342186